This item works very well at good price.
Aftermarket Tennant 1005302, In-Line Filter Assembly
Polygonal Holder Kit. Fits Nilfisk Advance Adfinity 17St, 20ST, X20R, Clarke Razor 20, Focus II S20, L20.
HOLDER POLYGONAL KIT
Fits Nilfisk Advance 9097093000 (alt # 9097093000)This part is listed as fitting the following models: